As a medical doctor specializing in gut health, I’ve helped thousands of patients eliminate potentially problematic foods and choose the best ones for their gut, immune system, and overall health. With alcohol, quality and quantity matters. Drinking a glass of quality cabernet will affect your gut entirely differently than, say, a number of sugar-laden margaritas. Read my guide on how to make gut-friendly alcohol choices. If you notice any negative symptoms within hours after eating dairy (headaches, fatigue, stomach pain, etc.), you may want to speak to your doctor about the possibility of lactose intolerance and potentially cutting back on dairy. However, you might benefit from some cultured dairy products (such no-sugar-added yogurts and kefirs). These are probiotic foods that are easier on the digestive system and can support the growth and proliferation of your “good” gut bacteria. That said, soaking or fermenting your legumes will minimize these problems, so they can be part of a healthy, gut-friendly diet. Take note if certain foods may be affecting your body, and ask your doctor if cutting back on them may be beneficial.